package com.bookmarket.service.impl;

import com.bookmarket.dao.AccidentMapper;
import com.bookmarket.entity.Accident;
import com.bookmarket.service.IAccidentService;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;
import java.util.Map;
@Service("accidentService")
public class IAccidentServiceImpl implements IAccidentService{
        @Resource
        private AccidentMapper accidentMapper;

    @Override
    public List<Accident> findAll() {
        return accidentMapper.findAll();
    }

    @Override
    public Page queryLikeUsers(Map<String, Object> cond) {
        Page page = new Page();
        // 根据条件查询符合的用户列表记录总数，赋值给page的totalNum变量
        page.setTotal(accidentMapper.getLikeCount(cond));
        // 从请求参数中获取每页大小
        int pageSize = Integer.parseInt(String.valueOf(cond.get("pageSize")));
        page.setPageSize(pageSize);
        // 从请求参数中获取当前页码
        int curPageNum = Integer.parseInt(String.valueOf(cond.get("pageNum")));
        page.setPageNum(curPageNum);
        //动态计算总页数(总记录数 除以 每页大小，加上  总页数 求余 每页大小，如果余数不为0，则 加 1，否则 加 0 )
        page.setPageNum((int) (page.getTotal() / pageSize + (page.getTotal() % pageSize == 0 ? 0 : 1)));
        //根据条件查询符合的用户列表记录，赋值给page的result变量
        page = PageHelper.startPage(curPageNum, pageSize);
        List list = accidentMapper.getLike(cond);

        return page;
    }

    public AccidentMapper getAccidentMapper() {
        return accidentMapper;
    }

    public void setAccidentMapper(AccidentMapper accidentMapper) {
        this.accidentMapper = accidentMapper;
    }
}
